Organic Carbon and Ammonia Removal by a Bench-scale Attached-growth Porous System for Treating Synthetic Wastewater
Water pollution is a serious issue in Taiwan, China, and domestic sewage has been identified as the most important water pollution source. To prevent receiving water bodies from domestic sewage pollution, sewer systems were planned and have been under construction. Unfortunately, the domestic sewage discharge still results in water quality deterioration in areas where the sewer systems are not in service. Meanwhile, many on-site attached-growth systems have been installed as an alternate solution to treat the un-collected domestic sewage. To better understand the performance and design parameters of these systems, this study employed a bench-scale attached-growth system using golf balls as the contact media to treat synthetic wastewater. In the synthetic wastewater, the ratio for C: N: P was 100: 5: 1. For aeration in the aquatic phase, the air flow of 6.19 L/min was introduced to main aerobic in the system. The result showed that more than 75% of biochemical oxygen demand (BOD), ammonium-nitrogen (NH3-N), ortho- phosphate (PO4 3—) was removed through aerobic degradation. More contaminants were removed as the hydraulic retention time increased. However, the treatment efficiency may be markedly reduced while the influent BOD concentration was above 100 mg/L. For the kinetic study, it is found that BOD degradation followed the 1st order degradation pattern generally.
attached-growth wastewater treatment BOD on-site treatment, 1st order kinetic
FAN Chihhao CHANG Huangyu
Department of Safety,Health,and Environmental Engineering,Ming Chi University of Technology,Taipei C Graduate Institute of Biochemical Engineering,Ming Chi University of Technology,Taipei County 24301,
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
1003-1007
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）